KR101137792B1 - Segment Type Underwater Transducer for Vessel SONAR Decoy - Google Patents
Segment Type Underwater Transducer for Vessel SONAR Decoy Download PDFInfo
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- KR101137792B1 KR101137792B1 KR1020100007754A KR20100007754A KR101137792B1 KR 101137792 B1 KR101137792 B1 KR 101137792B1 KR 1020100007754 A KR1020100007754 A KR 1020100007754A KR 20100007754 A KR20100007754 A KR 20100007754A KR 101137792 B1 KR101137792 B1 KR 101137792B1
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Abstract
The present invention relates to a segment-type underwater sound generating device for detonation or deception, which is installed in the detention or deception device for protecting the submarine from the detention or detection signal and generates a deception signal that simulates the reflection signal of the submarine target.
A sound generator 10 formed by assembling a plurality of segmented piezoelectric ceramic vibrators 11 into a cylindrical shape so as to be vibrated by an electrical signal of the self-destructive deception device 50 to generate a directional circumferential sound; A signal amplifier 20 for amplifying an electrical signal from the signal transmission panel of the self-destructive deception device 50 and applying it to the sound generator 10; A support structure 30 for supporting the sound generator 10; And a sound window 40 provided at a radially outer side of the support structure 30 to protect the sound generator 10 from seawater and external impacts.
As a result, the directional beam characteristics in the circumferential direction can be applied to self-deflection or deception, and the sensitivity of the transmission voltage in the low frequency band can be improved and the generation of high output sound signals is possible.
Description
The present invention relates to an underwater acoustic generator for detonation or deception, which is installed in the detention or deception device for protecting the submarine from the detention or detection signal, and generates a deception signal that mimics the reflection signal of the submarine target. The present invention relates to a segmented underwater acoustic generator for decompression or deception, in which a sieve is assembled to form an acoustic generator and vibration isolation of both ends thereof to generate a low frequency high power acoustic signal.
In general, land and air use electromagnetic waves to detect targets by radar, laser, or infrared rays, but sonar (SONAR) is used to detect underwater targets. The sonar is an essential acoustic equipment for ships that finds underwater objects that can threaten them and enables them to navigate safely. In particular, in the case of submarines that go underwater, the sonar plays an essential role as snow. On the other hand, the sonar is also used to detect underwater submarines, so the submarine can be safe only if it is not detected by the enemy sonar.
The principle of operation of the sonar is the piezoelectric effect (Piezo Effect). In general, if the intensity of the current flowing through the piezoelectric plate such as a crystal or ceramic exhibiting a piezoelectric phenomenon is changed to a constant frequency, they vibrate to generate sound waves of the same frequency. On the contrary, since the piezoelectric plate generates electric energy when externally received sound waves, analyzing the electric signal enables the component of sound waves to be found.
This sonar is a passive sonar of a hydrophone type that detects a target using sound generated from an underwater sound source, and a sound that detects a target using a reflected signal from the target after generating a specific acoustic signal toward the target. It is classified as an active sonar of probe type, and it selects and uses the appropriate type of sonar according to the purpose.
In particular, a submarine sailing underwater has a spherical water sonar, a side array arranged on the side of the ship, and a towing sonar connected by an optical cable, which is a spherical sonar that can be used both active and passive. The side array sonar and tow sonar use passive sonar. On the other hand, even in the case of torpedoes to attack the submarine is equipped with a sonar for the detection of the submarine.
In order to detect a submarine, an acoustic signal generated from a sonar attached to a vessel or the like detects a submarine target from a reflected signal reflected by the target, and finally detects the target's position using a sonar installed in the torpedo. Of course, if the position of the enemy submarine can be detected by detecting the noise of the enemy submarine without using the active sonar, the enemy submarine may be attacked without using the passive sonar without exposing the friendly submarine.
Accordingly, various means for protecting the submarine from enemy attack are being developed, and the Prairie Masker system and the Decoy system are representative. The Prairie Masker system deceives by blocking the noise by generating air bubbles around the propeller, which is the source of noise. The autonomous deception system fires an underwater object that generates a deception signal that simulates the reflected signal of the targeted submarine. By letting Hangzhou deceive Hamsona. Of course, targeted submarines should be avoided by enemy torpedoes through a silent or silent submarine after a quick evasion maneuver from the detection location.
In this case, the autonomous depression or the deception machine should have a resonance characteristic of a low frequency band including the frequency used in the sonar so as to be able to deceive the signal of the sonar, and high output characteristics are required to generate a sufficient deception signal.
Conventional high power underwater sound generating device having the above characteristics is typical of Tonpilz type sound generating device. As shown in FIG. 1, the tone field type sound generating device includes a front weight (1) and a back weight (2) disposed at the front and the rear, respectively, between the front weight (1) and the rear weight (2). A plurality of ring-shaped piezoelectric
The tonefield sound generating device configured as described above is configured to generate an acoustic signal while the front surface vibrates by the ring-shaped piezoelectric ceramic vibrating body.
The ring-shaped piezoelectric ceramic vibrating
At this time, the insulator (5) made of Coprene (Corprene) material to block the longitudinal vibration to the vibration system consisting of the front weight (1), the ring-shaped piezoelectric ceramic vibrating body (3) and the back weight (2) Is installed at the rear of the back weight (2), but in this case, the insulator (5) increases the energy loss due to hysteresis attenuation, and the impedance characteristic is greatly changed by external hydraulic pressure, which causes the performance to be degraded. .
In particular, the conventional tone field-type underwater sound generating apparatus described above is difficult to apply to self-destructive deception because sound waves are generated in the front weight 1 direction and thus have a direct beam characteristic in the front direction. That is, the self-destructive deception machine must be installed inside the body of the deception body of the cylindrical structure, as well as the propagation direction of the sound waves also need a non-directional beam characteristics of the circumferential direction, but the tonefields type underwater sound generation It is impossible to apply the tonefield type underwater acoustic generator to the self-directed deception because the device cannot realize the non-directional beam characteristics.
And in order to generate a low-frequency high-power acoustic signal, the diameter and length of the ring-shaped piezoelectric ceramic vibrating
In other words, the conventional tone-field type underwater acoustic generator is difficult to apply to the torpedo deception because the radial direction of sound waves is limited in all directions, and the ring-type piezoelectric ceramic vibrating body serving as the sound wave generator is limited to 150 mm in diameter. There is a problem that it is difficult to manufacture a ring-shaped piezoelectric ceramic vibrating body having a diameter of 150 mm or more to enhance low frequency output characteristics.
The present invention has been devised to solve the above-mentioned conventional problems, and applied to autonomous naval ships or deceptors to protect friendly submarines from enemy ships. It is an object of the present invention to provide a segmented underwater acoustic generator for a ship or a deceiver, which emits a signal in the circumferential direction of the deceptor body to protect an friendly submarine by deceiving an enemy ship or a signal.
In addition, the present invention is easy to manufacture by assembling a plurality of segment-type piezoelectric ceramic vibrating body in a cylindrical shape, so that the sound generating portion is installed on the deception body stably, and the sound generated by the support structure It is an object of the present invention to provide a segmented underwater acoustic generator for decompression or deception, which minimizes the restraint of wealth and prevents vibration from the deception body from being transmitted to the acoustic generator.
In addition, the present invention improves the sensitivity of the transmission voltage in the low frequency band through the backing layer between the segmented piezoelectric ceramic vibrating body and the support structure, and enables the generation of segmented underwater sound for detonation or deception. The purpose is to provide a device.
In addition, an object of the present invention is to provide a segmented underwater acoustic generator for decompression or deception to form a sound window made of polyurethane similar in properties to water to protect the acoustic generator from seawater and to minimize acoustic losses. have.
In addition, an object of the present invention is to provide a segment type underwater sound generating device for detonation or deception that enables high power transmission of sound signals by using a matching circuit in a signal amplifying unit for amplifying an electrical signal applied to the sound generating unit. have.
In order to achieve the above object, the present invention is provided with a self-destructive deception machine and in the underwater sound generating device for detonation or deception device that generates a deception signal by simulating the reflection signal of the target submarine target, vibrated by the electrical signal in the circumferential direction A sound generating unit comprising a plurality of segmented piezoelectric ceramic vibrating bodies assembled into a cylindrical shape so as to generate an omnidirectional sound; A signal amplifying unit for amplifying an electrical signal from the signal transmission panel of the self-destructive deceiving unit and applying it to the sound generating unit; A metal support structure for supporting the sound generating unit; And a sound window provided at a radially outer side of the support structure to seal the sound generating unit and to protect the sound generating unit from an external impact.
In addition, according to the segment-type underwater sound generating device for decompression or deception of the present invention, the support structure is located on one side in the longitudinal direction of the sound generating portion, the coupling surface formed in the coupling portion and a radially inner portion that is fastened to the deception body; Cylindrical portion and the deceiving body having a first support portion integrally formed with an additional portion, a coupling surface portion supporting the segmented piezoelectric ceramic vibrating body inside the sound generating portion and corresponding to a coupling surface portion of the first support portion at one end thereof. The fastening part which is fastened to is formed integrally with the second support part which is inserted from the other side in the longitudinal direction of the sound generating part, the engaging surface portion of the first support portion and the engaging surface portion of the second support portion is fastened by the fastening member It is characterized in that the first support portion and the second support portion are integrally combined.
In addition, according to the segment-type underwater sound generating device for decompression or deception of the present invention, a coprene ring, which is a sound absorbing material, is further provided between both longitudinal sides of the sound generating unit and the fastening portion of the support structure.
In addition, according to the segment type underwater acoustic generator for decompression or deception of the present invention, a backing layer is provided between the cylindrical portion of the sound generating portion and the inside of the sound generating portion, and the backing layer is formed of an air layer.
In addition, according to the segment type underwater acoustic generator for decompression or deception of the present invention, the acoustic window is characterized in that formed by vacuum molding polyurethane.
In addition, according to the segment type underwater sound generating device for deception or deception of the present invention, the signal amplifier is characterized in that it comprises a matching circuit for amplifying an electrical signal.
Segmented underwater sound generating device for decompression or deception of the present invention is a plurality of segmented ceramic vibrating body is assembled in a cylindrical shape to form a sound generating portion and vibration isolation in the longitudinal direction by the coprene ring, so directional directional It has a beam characteristic that can be applied to self-defense box or deception machine.
In addition, the segment type underwater sound generating device for detonation or deception of the present invention forms a sound generating unit by arranging them in a cylindrical shape after assembling a large number of segmented ceramic vibrating bodies, and thus, assembling and adjusting the diameter of the sound generating unit are easy. There is one effect.
In addition, according to the segment type underwater acoustic generator for decompression and deception of the present invention, the low frequency by filling the backing layer between the sound generating portion formed by assembling the piezoelectric ceramic vibrating body into a cylindrical shape and the metal support structure supporting the same. The transmission voltage sensitivity in the band is improved, and there is an effect capable of generating a high output acoustic signal.
In addition, according to the segment type underwater acoustic generator for decompression or deception of the present invention, the coprene ring is inserted into the support structure between the sound generating portion and the support structure formed by the segmented piezoelectric ceramic vibrating body assembled into a cylindrical shape. The restraint of the segmented piezoelectric ceramic vibrator is minimized and the influence of external vibration induced from the deceptive body is minimized, thereby enhancing the function of the sound generator.
In addition, according to the segment type underwater acoustic generator for decay or deception of the present invention, by vacuum molding a polyurethane similar in water to the outside of the acoustic generator, it protects the acoustic generator from seawater and external impact and minimizes the acoustic loss. It works.
In addition, according to the segment-type underwater sound generating device for deception or deception of the present invention, since the amplification using a matching circuit when transmitting the electrical signal to the sound generating unit, there is an effect capable of high output transmission of the sound signal.
1 is a configuration diagram schematically showing a conventional tone field-type underwater sound generating device.
Figure 2 is a perspective view of the self-destructive deception device to which the segmented underwater acoustic generator of the present invention is applied.
Figure 3 is a block diagram showing a segment type underwater sound generating device for deception or deception of the present invention.
4 is an external perspective view and an internal perspective view of a segmented underwater acoustic generator for deception or deception of the present invention.
5 is a cross-sectional view of a portion excluding the signal amplification unit in the segmented underwater acoustic generator for deception or deception of the present invention.
Figure 6 is a process diagram showing the manufacturing process of the segmented underwater sound generating device for deception or deception of the present invention.
Hereinafter, referring to the accompanying drawings, the segment type underwater acoustic generator for deception or deception of the present invention will be described.
Figure 2 is a perspective view showing a self-destructive deception device to which the segmented underwater acoustic generator of the present invention is applied, Figure 3 is a block diagram showing a segmented underwater acoustic generator for deception or deception of the present invention, Figure 4 Appearance and interior perspective view of a segmented underwater acoustic generator for decompression or deception of the present invention. 5 is a cross-sectional view of a portion of the segment-type underwater sound generator for deception or deception of the present invention excluding the signal amplifier, and FIG. 6 is a process diagram illustrating a manufacturing process of the segmental underwater sound generator for deception or deception of the present invention. to be.
In the segment type underwater acoustic generator for decompression or deception of the present invention, a plurality of segmented piezoelectric
The segmented piezoelectric ceramic vibrating
Here, the
In addition, the
Segmented underwater sound generating device for deception or deception of the present invention configured as described above is assembled in the following order.
First, by arranging and assembling a plurality of segmented piezoelectric
When the assembly of the
Segmented underwater sound generating device for deception or deception of the present invention configured as described above is to emit sound waves in all directions.
When an electrical signal is applied from the signal transmission board of the self-
In general, the vibration direction of the piezoelectric vibrating body is defined as one axis, two axes, and three axes instead of the X, Y, and Z axes. Means the vibration direction. Therefore, the 33 resonance mode means that the direction in which the electrode is installed on the vibrating body and the vibration direction are the same.
At this time, both sides of the
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation, Changes will be possible.
10: sound generator 11: segmented piezoelectric ceramic vibrating body
20: signal amplifier 25: signal line
30: support structure 31: first support
32: second support portion 33: fastening portion
34: cylindrical part 31 ', 34': mating surface part
35: coprene ring 36: backing layer
40: acoustic window 50: self-defense deception
Claims (6)
A sound generator 10 formed by assembling a plurality of segmented piezoelectric ceramic vibrators 11 into a cylindrical shape so as to be vibrated by an electrical signal of the self-destructive deception device 50 to generate a directional circumferential sound;
A signal amplifying unit (20) for amplifying an electric signal from the signal transmitting panel of the self-destructing deceiver (50) and applying it to the sound generating unit (10);
A support structure (30) for supporting the sound generator (10);
Acoustic window 40 provided on the outer side in the radial direction of the support structure 30 to protect the sound generating unit 10 from sea water and external impact; Device.
The support structure 30 is located on one side in the longitudinal direction of the sound generating unit 10, the fastening portion 33 is fastened to the deception body 51 and the coupling surface portion 31 'formed on the inner portion of the radial direction is An integrally formed first support portion 31 and the segmented piezoelectric ceramic vibrating body 11 are supported inside the sound generator 10, and an engaging surface portion 31 ′ of the first support portion 31 is formed at one end thereof. A cylindrical portion 34 having a mating surface portion 34 'corresponding to the coupling portion 34 and a fastening portion 33 fastened to the deceptive body 51 are integrally formed so that the other side in the longitudinal direction of the sound generating portion 10 is formed. The second support portion 32 is inserted into the
The engaging surface portion 31 ′ of the first support portion 31 and the engaging surface portion 34 ′ of the second support portion 32 are fastened by a fastening member so that the first support portion 31 and the second support portion 32 are fastened. Segmented underwater sound generating device for detonation or deception, characterized in that is integrally combined.
Segmented underwater sound for detonation or deception, characterized in that the sound-absorbing material coprene ring 35 is further installed between both the longitudinal direction of the sound generating unit 10 and the fastening portion 33 of the support structure 30, respectively. Generator.
The backing layer 36 is provided between the cylindrical portion 34 of the support structure 30 and the inner side of the sound generating portion 10,
The backing layer 36 is a segmented underwater sound generating device for detonation or deception, characterized in that consisting of an air layer.
The acoustic window 40 is a segmented underwater sound generating device for decompression or deception, characterized in that formed by vacuum molding polyurethane.
The signal amplification unit 20 is a segment type underwater sound generating device for decay or deception, characterized in that it comprises a matching circuit for amplifying the electrical signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020100007754A KR101137792B1 (en) | 2010-01-28 | 2010-01-28 | Segment Type Underwater Transducer for Vessel SONAR Decoy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020100007754A KR101137792B1 (en) | 2010-01-28 | 2010-01-28 | Segment Type Underwater Transducer for Vessel SONAR Decoy |
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| KR20110088037A KR20110088037A (en) | 2011-08-03 |
| KR101137792B1 true KR101137792B1 (en) | 2012-04-18 |
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| KR1020100007754A KR101137792B1 (en) | 2010-01-28 | 2010-01-28 | Segment Type Underwater Transducer for Vessel SONAR Decoy |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR102107020B1 (en) * | 2018-01-04 | 2020-05-06 | 국방과학연구소 | Apparatus and method for obtaining position information of torpedo applying bi-static acoustic detection |
| CN110174637A (en) * | 2019-05-21 | 2019-08-27 | 中国船舶重工集团公司第七一九研究所 | A kind of lifesaving underwater sound shows a beacon |
| KR102312037B1 (en) * | 2021-04-29 | 2021-10-14 | 대한민국 | Deep learning based underwater noise transformation system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4183008A (en) | 1958-05-12 | 1980-01-08 | The United States Of America As Represented By The Secretary Of The Navy | Noise making device |
| US6600694B1 (en) | 2002-07-31 | 2003-07-29 | The United States Of America As Represented By The Secretary Of The Navy | Digital signal processor based torpedo counter-measure |
| KR20090039394A (en) * | 2007-10-18 | 2009-04-22 | 엘아이지넥스원 주식회사 | Underwater acoustic sensor |
| KR20090113572A (en) * | 2008-04-28 | 2009-11-02 | 엘아이지넥스원 주식회사 | Acoustic sensor and phase control method using it |
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2010
- 2010-01-28 KR KR1020100007754A patent/KR101137792B1/en active IP Right Grant
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4183008A (en) | 1958-05-12 | 1980-01-08 | The United States Of America As Represented By The Secretary Of The Navy | Noise making device |
| US6600694B1 (en) | 2002-07-31 | 2003-07-29 | The United States Of America As Represented By The Secretary Of The Navy | Digital signal processor based torpedo counter-measure |
| KR20090039394A (en) * | 2007-10-18 | 2009-04-22 | 엘아이지넥스원 주식회사 | Underwater acoustic sensor |
| KR20090113572A (en) * | 2008-04-28 | 2009-11-02 | 엘아이지넥스원 주식회사 | Acoustic sensor and phase control method using it |
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| KR20110088037A (en) | 2011-08-03 |
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